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help constructors for classes

ryan1 (2)
aving trouble figuring out the constructors the code in the main() is supposed to test the class so i can go on to the rest of the program. this is the instructions Constructors

This class has two constructors. The default constructor (the one that takes no arguments) should initialize the value of the coin to a penny (0.01) and the side should be initialized by calling the toss() method that is described below.

The other constructor takes 1 argument: a double that holds the initial value for the coin. The passed in argument should be used to initialize the value of the coin. No error checking is required. The side should be initialized by calling the toss() method that is described below.
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#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#include <cstring>

using namespace std;



//Put the Coin class definition after this line

class Coin
{
public:
  Coin()
  {
  value = 0.01;
  toss();
  
  }
 
  Coin(double )
  {
   toss();
  
  
  

  }

  void toss();
  
  int getSide();
  double getValue();

private:
  double value;	
  char side[6];
};










int main()
{
//Set the random number generator and the formatting for the output

srand( 1 );

cout << fixed << setprecision(2);


//Create objects using the two constructors

Coin coin1;
Coin coin2( 0.25 );
Coin coin3( 0.10 );

//Test 1: the getSide method

cout << "Test 1: use the getSide method on all of the objects" << endl << endl
     << "coin1 has " << ( (coin1.getSide() == 1)? "heads" : "tails" ) << " up" << endl
     << "coin2 has " << ( (coin2.getSide() == 1)? "heads" : "tails" ) << " up" << endl
     << "coin3 has " << ( (coin3.getSide() == 1)? "heads" : "tails" ) << " up" << endl;

//Test 2: the getValue method

cout << endl << endl
     << "Test 2: use the getValue method on all of the objects" << endl << endl
     << "coin1 has the value $" << coin1.getValue() << endl
     << "coin2 has the value $" << coin2.getValue() << endl
     << "coin3 has the value $" << coin3.getValue() << endl;

//Test 3: the toss method

cout << endl << endl
     << "Test 3: use the toss method 5 times on all of the objects" << endl << endl;

cout << "coin1       coin2       coin3" << endl
     << "-----------------------------" << endl;

for( int cnt = 1; cnt <= 5; cnt++ )
  {
  coin1.toss();
  cout << ( (coin1.getSide() == 1)? "heads" : "tails" );

  coin2.toss();
  cout << ( (coin2.getSide() == 1)? "       heads" : "       tails" );

  coin3.toss();
  cout << ( (coin3.getSide() == 1)? "       heads" : "       tails" ) << endl;
  }

return 0;
}

//Code the constructors and methods for the Coin class after this line


 void Coin::toss()
	{
	
	
    int num = rand() % 2+ 1;
    if (num == 1)
	{
       
       strcpy(side,"heads");
	 }
       else 
	   {
           
		   strcpy(side,"tails");
       }
   }
 int Coin::getSide()
 	{
	  if (side=="heads")
	   {
	    return 1;
	   
	   }
	   else 
	   {
	    return 2;
	   }
	
	}
	
 double Coin::getValue()
 	{
	 return value;
		
	
	}
Last edited on
coder777 (8444)
You may write the constructors like so:
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class Coin
{
public:
  Coin()
  {
  value = 0.01;
  toss();
  
  }
 
  Coin(double v) : value(v)
  {
    toss();
  }
C++11:
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class Coin
{
public:
  Coin(double v) : value(v)
  {
    toss();
  }
  Coin() : Coin(0.01)
  {
  }
Two constructors are unnecessary:
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class Coin
{
public:
  Coin(double v = 0.01) : value(v)
  {
    toss();
  }
ryan1 (2)
thanks alot for you help i figured it out heres the final code FOR ANYONE WHOSE INTERESTED.


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 #include <iostream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#include <cstring>

using namespace std;



//Put the Coin class definition after this line

class Coin
{
public:
  Coin();
  Coin(double );
  void toss();

  int getSide();
  double getValue();

 private:
double value;   
char side[6];
};

int main()
{
//Set the random number generator and the formatting for the output

srand(  time(NULL) );

cout << fixed << setprecision(2);


  //Create objects using the two constructors

Coin coin1;
Coin coin2( 0.25 );
Coin coin3( 0.10 );


double balance;

  while (balance < 1.00)

{
cout << "current Balance: "<<balance<<endl;

coin1.toss();
cout<< "Nickel: "<< ( (coin1.getSide() == 1)? "heads" : "tails" )<<endl;
 if (coin1.getSide()==1)
    {
    balance +=coin1.getValue();

    }

coin3.toss();
cout<< "Dime: " << ( (coin3.getSide() == 1)? "heads" : "tails" )<<endl;
if (coin3.getSide()==1)
    {
    balance +=coin3.getValue();

    }
coin2.toss();
cout<< "Quarter: " << ( (coin2.getSide() == 1)? "heads" : "tails" )<<endl;
if (coin2.getSide()==1)
    {
    balance +=coin2.getValue();

    }
cout << "-----------------------------" <<endl
<< "your current balance is $"<< balance <<endl
<< endl;



}


cout<< "The final balance is "<< balance<<" Congrats! You won!"<<endl;


return 0;


 }

  //Code the constructors and methods for the Coin class after this line

   void Coin::toss()

     {

int num = rand() % 2+ 1;
if (num == 1)
{

   strcpy(side,"heads");
 }
   else 
   {

       strcpy(side,"tails");
   }
  }
  int Coin::getSide()
{

if (strcmp(side,"heads")==true)
{
return 1;
}
else
return 2;
}


double Coin::getValue()
    {
     return value;


}

Coin::Coin()
{
  value = 0.05;
  toss();

 }

Coin::Coin(double newValue)
{
 value = newValue;



}

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